Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone

Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone For Sale

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Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone:
$199.00

Zenith 4-R-231 Farm Radio
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Core Specifications

Manufacturer: Zenith Radio Corp. (Chicago, IL)
Release Year: Late 1937 / 1938
Radio Type: \"Farm Radio\" (Battery-operated tabletop/tombstone)
Circuitry: Superheterodyne arrangement
Intermediate Frequency (IF): 456 kHz
Bands: Broadcast (AM)

⚡ Power & Electrical

Power Source: 6-Volt DC lead-acid storage battery (often recharged by a family vehicle or a Zenith \"Windcharger\").
Power Supply Mechanics: Utilizes a synchronous vibrator. It mechanically chops the 6V DC into AC, steps it up via a transformer, and mechanically rectifies it back to high-voltage B+ DC (~143V–148V), eliminating the need for a rectifier tube.
Power Choke (Choke No. 6): ~611 ohms DC resistance with an inductance of roughly 13 Henrys.

🧪 Tube LineupThe chassis runs on 4 tubes plus the mechanical vibrator unit: [1]

6D8G: Converter / First Detector & Oscillator
6S7G: IF Amplifier
6T7G: Second Detector / AVC / Audio Amplifier
38: Audio Power Output

📐 Physical Dimensions

Cabinet Size: Approximately 14\" H x 12.5\" W x 9\" D
Speaker: Features a permanent magnet or low-resistance (15-ohm) dynamic speaker.

Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone For Sale

Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone: $199.00

Zenith Wood 4-R-231 Farm Antique Vintage Radio - 6V Battery Table Top Tombstone:
$199.00